Finding the Third Proportional to 226,015.50 and 309,912

Step by Step Solution

1. Step 1: Write the proportion equation
   226,015.50 : 309,912 = 309,912 : x
2. Step 2: Convert to fraction form
   226,015.50/309,912 = 309,912/x
3. Step 3: Cross multiply
   226,015.50x = 309,912 × 309,912
4. Step 4: Simplify right side
   226,015.50x = 96,045,447,744
5. Step 5: Solve for x
   x = 96,045,447,744/226,015.50
6. Step 6: Final answer
   x = 424,950.71